Medium severity · published Oct 1, 2025
CVE-2025-59337
Discourse: Cross-Site Data Exposure via Backup Restore Metacommand Injection in Multisite Deployments
6.8
CVSS
0.3%
EPSS
No
On KEV
Description
Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse · discourse
< 3.5.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59337
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59337
Patch
https://github.com/discourse/discourse/commit/43536b60d012cc8084e7e701d6afab9ba01e28a5
Vendor Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-7xjr-4f4g-9887
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